What does the term "no zones" refer to for truck drivers?

The term "no zones" specifically refers to areas around large trucks where visibility is severely limited for the driver. These blind spots can be particularly hazardous for other vehicles, as the truck driver may not be able to see them in these zones. It is crucial for drivers of smaller vehicles to be aware of these no zones and to avoid lingering in them, particularly during maneuvers such as passing or merging. By understanding and recognizing these areas, other drivers can enhance their safety on the road and minimize the risk of accidents involving large trucks.